databeans is a fully object oriented (not relational) persistence framework for Java, based on the use of the JavaBeans accessor methods to read and write data on disk instead of in the classes' instance fields.

Here are some key features of "databeans":
based on the use of the javabeans accessor methods to read/write data on disk in place of in the classes' instance fields
distributed (through RMI)
transactional (with the 4 ANSI isolation levels supported)
garbage collected (backed by an on-disk heap "heapspace")
with persistent versions of the Collection classes

Installation:

Extract the archive into any appropriate directory on your hard drive. It will create a "databeans" directory with the following contents:

The most interesting part for now is the file getting_started.txt located in the docs/ directory. It will guide you through running a sample application (which is located in the sample/ directory). That done, go on and read the manual (below) for a complete view of the product's features.